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        "author": "Jesse London",
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        "description": "Paperboy\n========\n\nA simple fork of ``django.dispatch`` for use as a standalone Python\nPubSub library.\n\nUse\n---\n\nPaperboy's ``dispatch`` may be used identically to Django's; they are\nessentially the same.\n\nA \"signal dispatcher\" helps decoupled applications notify each other of\nevents. A library, for instance, may thereby invoke callables of\ndependent applications, without having been programmed for them, and\nwithout needing to extend or patch the library. The *signal* notifies\nregistered *receivers* on behalf of their sender, via the *dispatcher*.\n\nFor example, say we have a pizza delivery library. Its job is only to\ncommunicate with the pizza delivery Internet API; rather than program a\nsingle user notification pipeline, this library's developer wants to\nsend a signal to subscribed receivers that a pizza has been delivered:\n\n::\n\n    from dispatch import Signal\n\n    delivered = Signal(providing_args=['parlor'])\n\nUpon learning that a pizza has been delivered, the library could then\nsend this signal:\n\n::\n\n    class PizzaAPI(object):\n\n        def check(self):\n            response = self.get_response()\n            if response.status == 'delivered':\n                delivered.send(sender=self, parlor=response.parlor)\n\nHowever, a signal's not much use if no one's around to receive it.\nApplications making use of the pizza delivery library may register\nreceivers with the dispatcher via the signal they intend to receive:\n\n::\n\n    delivered.connect(popup_window)\n\nor using the ``receiver`` decorator:\n\n::\n\n    from dispatch import receiver\n\n    @receiver(delivered)\n    def popup_window(sender, parlor, **kws):\n        ...\n\nSee `Django's\ndocumentation <http://docs.djangoproject.com/en/1.6/topics/signals/>`_\nfor more information.\n\nConfiguration\n-------------\n\nPaperboy's ``dispatch`` is ready for use. However, its ``Signal``, as in\nDjango, respects a debugging mode, under which receivers are inspected\nupon connection. Paperboy does not supply a configuration framework of\nits own, but you may trivially configure it, as in the below examples.\n\nGlobally:\n\n::\n\n    from dispatch import Signal\n    Signal.debug = True\n\nBy application:\n\n::\n\n    from dispatch import Signal\n\n    class AtariSignal(Signal):\n\n        debug = True\n\nAnd with increasing sophistication:\n\n::\n\n    from dispatch import Signal\n    from atari.conf import settings\n\n    class AtariSignal(Signal):\n\n        @property\n        def debug(self):\n            return settings.DEBUG\n\nInstallation\n------------\n\nWith an installation tool such as pip:\n\n::\n\n    pip install Paperboy\n\nFrom source:\n\n::\n\n    python setup.py install\n\nRunning tests\n-------------\n\nVia the setup.py file:\n\n::\n\n    python setup.py test",
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        "license": "BSD",
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